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6.8 Define Fletcher32 Parameters for a Variable: NF90_DEF_VAR_FLETCHER32

The function NF90_DEF_VAR_FLETCHER32 sets the fletcher32 parameters for a variable in a netCDF-4 file.

This function must be called after the variable is defined, but before NF90_ENDDEF is called.

Usage

       function nf90_def_var_fletcher32(ncid, varid, fletcher32)
         integer, intent(in) :: ncid
         integer, intent(in) :: varid
         integer, intent(in) :: fletcher32
         integer :: nf90_def_var_fletcher32

NCID

NetCDF ID, from a previous call to NF90_OPEN or NF90_CREATE.

VARID

Variable ID.

FLETCHER32

If this is non-zero, fletcher32 checksums will be turned on for this variable.

Errors

NF90_DEF_VAR_FLETCHER32 returns the value NF90_NOERR if no errors occurred. Otherwise, the returned status indicates an error.

Possible return codes include:

NF90_NOERR

No error.

NF90_BADID

Bad ncid.

NF90_ENOTNC4

Not a netCDF-4 file.

NF90_ENOTVAR

Can't find this variable.

NF90_ELATEDEF

This variable has already been the subject of a NF90_ENDDEF call. In netCDF-4 files NF90_ENDDEF will be called automatically for any data read or write. Once enddef has been called, it is impossible to set the fletcher32 for a variable.

NF90_ENOTINDEFINE

Not in define mode. This is returned for netCDF classic or 64-bit offset files, or for netCDF-4 files, when they were been created with NF90_STRICT_NC3 flag. (see NF90_CREATE).

NF90_EPERM

Attempt to create object in read-only file.

Example

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